{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "VSMCs were incubated in NaCl or DMOG solution at 4 degrees C for 24 hours after the medium was changed for a supplied standard medium at 37 degrees C for 6 hours ."}
{"Chemical": ["NaCl", "DMOG"]}